9e49fb63d3
add copyrights everywhere start working on quadratic line segments (for quad intersection) git-svn-id: http://skia.googlecode.com/svn/trunk@5286 2bbb7eff-a529-9590-31e7-b0007b416f81
25 lines
634 B
C
25 lines
634 B
C
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "DataTypes.h"
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bool implicitLine(const _Line& line, double& slope, double& axisIntercept);
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int reduceOrder(const _Line& line, _Line& reduced);
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double t_at(const _Line&, const _Point& );
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void xy_at_t(const _Line& , double t, double& x, double& y);
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enum x_at_flags {
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kFindTopMin = 1,
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kFindTopMax = 2,
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kFindBottomMin = 4,
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kFindBottomMax = 8
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};
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void x_at(const _Point& p1, const _Point& p2, double minY, double maxY,
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int flags, double& tMin, double& tMax);
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